Derivatives of bromine are much more active than the corresponding one of chlorine.溴的衍生物的活性要比相应的氯的衍生物大得多.Polyfluorene and its derivatives is one of the most promising electroluminescent polymers.聚芴衍生物是最有发展潜力的电致发光材料之一.The...
有福之人便是那些健忘者.因为他们同时忘了愚昧.Blessed are forgetful for they get the better even of their blunders.而健忘者尤其在空间参照物和情绪方面表现得差点.The amnesiacs rated lower especially in terms of spatial references and emotions.健忘者是幸福的, 因为他们同时也忘了愚昧.Ble...
A burro is carrying salt of one large bag backcross a river.有一头驴子驮着一大袋子盐过河.The method can be conveniently applied to practical backcross breeding programs.该方法可以很方便地应用于实际的回交育种....